Mounting The New Power Unit - SMA SB3.0-1SP-US-40 Instrucciones De Servicio

SMA Solar Technology America LLC
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Mounting the New Power Unit

1.
Danger to life due to high voltages
• Disconnect the inverter from voltage sources (see inverter manual).
2. Hook the new Power Unit into the upper recesses of the wall mounting bracket, thus plugging
the Power Unit into the Connection Unit. Make sure that the screw holes on the left and right
sides of the Power Unit are directly over those of the Connection Unit; and the cables
protruding from the Power Unit must not be pinched.
3. Tighten two screws with two washers on the right and left side of the Power Unit (TX25)
(torque: 6 Nm ± 0.3 Nm (53 in-lb ± 2.65 in-lb)).
4. If the enclosure lid of the new Power Unit is a transport lid (see information on the enclosure
lid), replace the transport lid of the new Power Unit with the enclosure of the defective Power
Unit:
• Unscrew all screws of the upper enclosure lid
(TX25) and remove it.
• Position the upper enclosure lid with the six
screws and serrated conical spring washers on
the enclosure and tighten it in the specified
order (TX25, torque: 6 Nm (53 in)).
5. Secure the inverter to the wall mounting bracket. To
do this, insert the screw M5x60 through the hole on
the left side of the Power Unit and screw it into the
thread (TX25, torque: 1.7 Nm ± 0.3 Nm (15.05 in-
lb ± 2.65 in-lb)).
6. If the inverter is to be protected against theft, attach a padlock:
Service Manual
5 Mounting the New Power Unit
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